Stability of a pretwisted blade with rotating speed

Shih-Ming Yang, S. M. Tsao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An analytical model is presented to investigate the vibration and stability of a pretwisted blade under nonconstant rotating speed. Two coupled bending displacements in flapwise and edgewise directions are considered. The time-dependent rotating speed leads to nonautonomous systems in which parametric resonance can occur. Six parametric instabilities, including primary and combination resonances, are predicted by using multiple scale method. These instability predictions are compared with those from numerical results of a more detail model. Among all instabilities, the combination resonance when perturbed frequency near twice of the fundamental frequency is found to be most critical and sensitive to system parameters.

Original languageEnglish
Title of host publicationManufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791878972
DOIs
Publication statusPublished - 1992 Jan 1
EventASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992 - Cologne, Germany
Duration: 1992 Jun 11992 Jun 4

Publication series

NameASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992
Volume5

Other

OtherASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992
CountryGermany
CityCologne
Period92-06-0192-06-04

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Yang, S-M., & Tsao, S. M. (1992). Stability of a pretwisted blade with rotating speed. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education (ASME 1992 International Gas Turbine and Aeroengine Congress and Exposition, GT 1992; Vol. 5). American Society of Mechanical Engineers. https://doi.org/10.1115/92GT168